Thinking about having my chickens (they will be hatched April 29th) free range. I live near woods so I know there is some (a lot?) of risk to this. We live on 4 acres and half of it is surrounded by woods and half of it is surrounded by a huge farm where we randomly see cows. Do free range chickens stay near their coop or do they like to roam? I have a dog kennel (chain link) that I plan on using for their run for when I can't be there to watch them or for inclement weather.